Pier-shed door



March 13, 1928. 1,662,709

} M. H. KORN v PIER SHED DOOR Filed Aug-18, 1925 5 Sheets-Sheet 1 gm-mINVENTOR. w! marimiilia'mllIkurn- ATTORNEYS March 13, 1928.

M. H. KORN PIER SHED DOOR Filed Auz.18, 1925 5 Sheets-Sheet 2 INVENTOR)Ilaximbltu/IH .jfbrrl/ ATTORNEYS "I IAIIIIII II.

lllllllllllll JU IIIIIII w. w n

March 13, 1928.

M. H. KORN PIER SHED DOOR Filed Auez. 18, 1925 5 Sheets-Sheet 3 INVENTORm mm a laawl iia w WITNESSES ATTORNEYS March 13,1928. u 1,662,709

M. H. KORN PIER SHED noon Filed Au21.l8, 192 s Sheets-Shet 4 WITNESSES IINVENTQR 77la9c LmdlanE Horn ATTORNEYS Patented Mar. 13, 1928:.

UNITED STATES MAXIMILIAN E. KORN, F TEANECK, NEW JERSEY.

PIER-SHED DOOR.

Application filed August 18, 1925. Serial No. 50,964.

This invention relates to pier shed doors and has for an obj ect. toprovlde an improved construction wherein a strong door is presentedwhile means are provided for readily moving the door out of the waywhenever desired. L

Another object of the invention is to provide a door wherein the same isformed in sections and associated with mechanism for readily raising thesections to a point above the door opening.

A further object of the invention, more specifically, is to provide asectional pier s ed door with means for readily raising the samepartially or completely and with the part-s so formed that when the dooris closed the various sections will be properly braced to take care ofany strain that might be brought to bear thereon.

An additional object, more specifically, is to provide a pier shed doorand form the same into sections with suitable guiding runways andguiding members co-acting therewith whereby the sections may be quicklyand easily elevated from a closed position to an upward position out ofthe door opening.

In the accompanying drawings Figure 1 is a rear view of a doordisclosing an embodiment of the invention, the

same being shown in connection with certain beams and parts of the piershed construction.

Figure '2 is an enlarged sectional view through Figure 1, approximatelyon line 2- 2, the door and certain other parts being shown in elevationand the lower part being cutrofi.

Figure 2 is a view showing the lower part of the door structureillustrated in Figure 1.

Figure 3 is a top plan view of the lifting mechanism and associatedparts shown in Figure 1, the same being an enlarged view andillustrating the lifting mechanism of adjacent doors.

Figure 4 is an enlarged fragmentary view showing the interior of one endof one of the door sections illlustrated in Figure 1.

Figure 5 is a sectional view through Figure 4 on line 5-5.

Figure 6 is an enlarged fragmentary sectional view showing the structureof adjacent se'ctions andhow the upper section is guided until it hasmoved a certain distance. 7 Figure 7 is an enlarged fragmentary view. 55showing a connection. of the hfting cable to the respective doorsections.

Figure 8 is a view similar to Figure 2 but showing a modified formthereof.

Figure 8 is a view similar to Figure 2 but showing the lower part of thestructure illustrated in Figure 8.

- Figure 9 is a fragmentary top plan view of one end of the structureshown'in Figure 8.

Figure 9 is a detail fragmentary perspective view of the lower part ofsome of the doors shown in Figure Referring to the accompanying drawingsby numerals, 1 indicates the door jamb of the door of a pier shedand 2certain upper beams which hold the jamb 1 in place and which also act asconnecting and supporting means for other parts including the roof orsecond floor of the shed. The structures just described are old and wellknown and, therefore, form no part of the presentinvention except incombination with the door 3. This door is made up of a nuinber ofsections 4 and said sections are individually raised by cables 5 and 6mounted to be wound upon the respective stepped drums 7 and 8 whichact-with other parts as lifting means for raising the sections to aposition out of the door opening.

As indicated in Figure 3, there is provided a pair of drums 7 and 8 foreach door and each of these drums is rigidly connected to a shaft 9which is adapted to be manuallyrotated for actuating, the drums 7 and 8.This manual structure is shown in Figures 1 and 3 and includes a wormwheel 10 rigidly secured to shaft 9 and meshing contindaily with theworm 11 carried by the shaft 12. The shaft 12 has a chain wheel 13rigidlly secured thereto and over which the chain 14 passes as thechainis moved. This chain wheel is of the usual type capable ofreceiving the links of chain 14 and interlocking therewith so that whenone run of the chain is pulled the chain will rotate the wheel 13 andparts connected therewith. In order to counterbalance the weight of thevarious sections 4 and thereby permit the chain 14: to be moved manuallywith little trouble, a drum 15 is rigidlysecured to shaft 9 andon thisdrum is wound a cable 16,

which cable passes over suitable pulleys 17 and the'end of the cable 16is secured to a suitable weight 18. The cable is extended in the mannershown in Figure 3in order that the weight 18 may be in the framework ofthejamb 1 though it could be placed at top at the same time.

any other convenient point without departin from the spirit of theinvention.

Tiy reason of the stepped formation of the drums 7 and S, the varioussections 4 are raised independently and at different speeds so that theywill all become nested at the The largest portion of the drum 7, forinstance, carries the cable which is connected with the lowermostsection 4 and the second largest portiop of the drum is connected withthe second section from the bottom. This idea is carried throughoutthevarious structures and the parts are properly proportioned so that whenthe chain 14 is pulled properly the various sections will allimmediately begin to move upwardly and at different speeds but at suchspeeds that they will all be nested at the top at the same time.

In Figures 4 and 5, certain details of the various sections 4 are shown.From these figures it will be observed that thesedoors are formed from asuitable framework 19, to which a sheet metal covering 20 is secured.The framework 19 includes the top and bottom angle irons 21 and 22.Arranged near the top 'of each section 4 is a stub shaft 23 bolted orotherwise secured to the frame 19 and on these stub shafts are"arrangcdrollers 24. Near the bottom and at each end of the various sections 4there are arranged brackets 25, each bracket. carrying a roller 26. Thepintle or stub shaft 27 extends through bracket 25 and roller 26 andalso through the roller bearing-28 which co-acts with the roller. 24 forguiding the section as it moves up the respective grooves 29. It will benoted that all these guiding grooves except the one for the top sectionare inclined from the bottom to the topand that all except the top onehave short bends at the bottom and near the top. The ordinary rollers 24and 28 are intended to move in thesegrooves or rather these spaced barsacting as guides, the arrangement being shown particularly in Figure 3.

As indicated in Figures 2 and 2, the various guiding channels or grooves29 stop at the different points 29' except the channel running to thebottom and in order to accommodate this matter there is provided aroller 26 at the bottom of each of the sections 4 except the lowermostsection, The rollers 26 engage the side of the jamb 1 as soon as theguiding roller 28 leaves its channel 29. The upper guiding roller 24always remains in the guiding channel 29. In this way, the

sections are readily guided to a closed posi' tion or to an openposition and friction is reduced to a minimum while at the same timeproviding a tight door against the weather. In order to take care of theaction of wind, there is provided what may be termed wind locks as shownin Figures 1 and 6. These consist of strips of metal 30 eoacting withthe yarious rollers 31 carried by brackets 32, which brackets are boltedor otherwise secured to the lower part of all of the sections 4 exceptthe lowermost section. The metal strip 30 is preferably somewhatresilient and, therefore, continuous to act to press the lower part ofthe door sections tightly against the jamb when the door is closed.\Vhen the door is being opened, the various sections may pass each otheras they are nested at the top by reason of the flare 30'. Connected tothe various sections 4 are cables 5 and 6, said cables being connectedpreferably to the upper edge of the sections through suitable U-shapedmembers 33 (Figure 7). A turn buckle 34 is also preferably used andinterposed between theend of the cables and the U-shaped member 33whereby a fine adjustment may be secured and in this way-the Varioussections caused to function easily and accurately.

In Figures 8 and 9, a modified structure is shown wherein the varioussections 4 are arranged at an angle. These sections are preferablyconstructed the same as section 4 of Figure 1 but the wheels or guidingrollers 26 and 31 are eliminated as the various pins 35 and 36 arecontinually positioned in the guides 37, which guides extend from aposition above the door opening to the bottom of-the plates where theparticular section of door is to be positioned. It will be noted thatthese guides are at an angle from top to bottom and that the varioussections 4 moveat an angle and remain at an angle at all times thoughthe effective plane of the door when closed is vertical. A pin 38 isarranged at each end of each of the sections 4' except the top section,said pins being arranged near the upper edge of the respective sectionsand projecting far enough to engage the next superimposed section andraise the same when the lower section is being raised. It will thus benoted that when the lower section is raised a short distance the secondsection from the bottom will also be raised and as the various sectionsare gradually moved toward the top the higher sections are graduallycollected until finally all of the sections are nested together at apoint above the door-opening. As the lower sections collect and raisethe next upper sections it is necessary to provide only a single pair ofcables 39 instead of two cables 5 and 6 as shown in Figure 1 for eachsection. A cable or chain 39 is connected to the lowermost section 4near the respective ends thereof and these cables or chains are woundupon suitable drums 40 and as they are wound the various sections willbe collected successively and. moved to the position shown in dottedlines in Figure 8. A shaft 41 connects the resp'ecti've drums 40 so thatwhen this shaft is rotated both drums will be operated and the sectionsraised evenly. A small drum 42 is rigidly secured to the shaft 41, saiddrum accommodating a cable or chain 43 which passes over suitablepulleys 44 and is connected with a counterbalancing weight 45.Preferably there is a counterbalancing weight, chain and associatedparts near each end of shaft 41. A worm wheel 46 is rigidly secured toshaft 41 and meshes continually with the worm 47 carried by shaft 48.The shaft 48 carries a chain wheel 49 adapted to receive the chain 50whereby when one run of this chain is pulled the parts will be actuatedfor rotating shaft 41 and either lift or lower the various sections 4.In this form of the invention the usual vertical jamb 1 must besupplemented by plates or fittings 51 so that the ends of the varioussections 4 may properlyfit these plates to produce a tight doorstructure. invention, as well as the preferred form, the door has thedistinct advantage of not encroaching on the desired freight spacewithin the pier or railroad shed. By reason of the vertical orsubstantially vertical movement of the sections and also their osition,much less space is taken than wit doors now in common use.

A large sized door of the kind generally regluired in the sides ofsteamship-piers or ra1 road freight sheds. is essential for businesspurposes and, in fact, makes up usually all or most of the side of theshed. Doors for this purpose heretoforewere made to turn or fold,whereas in the present invention the door is made in sections of adesired size and. is lifted substantially vertically to a position outof the way, thus leaving the door opening free. In constructing thevarious doors, and particu-' larly thesections 4 and 4. a number ofsections or leaves are such that all sections shall be no higher thanthe clear head room above the door room. Also, b forming the ,door intothe sections descri ed, the ,door

may be easily 0 ened or closed. In this connection, it will be notedthat the worm and worm gear provided abovethe door opening and actingwith a suitable counterweight makes the door very easily operated andalso presents a structure whereby the dooris locked either in open orclosed position; Also, this structure permits glazed sashes to be used.\Vhen the door is fully open, the various sections are nested at a pointslightly above the door opening, and when the door is closed allsections are flush on the outside face and represent a proper closurefor the door 0 ening. I

It will be noted that by the use of a counterweight, the door veryeasily operates and sinceall the door sections move simul- In this formof the taneously, a hundred per cent counter-balance is possible, onaccount of which, the door not only operates easily but will remainstationary in any position of opening or closing. \Vhen the door isclosed, the sestions are all arranged in a vertical line and not offsetinwardly or outwardly and, consequently, take up a minimum space. Theguides which guide the various sections are provided with two bends, oneat the bottom and one near the top except for the top section, and theparts between these bends are straight but inclined slightly from thevertical. This structure, therefore, re-- sults in a door having thesections in the same vertical plane when the door. is closed and in thesame horizontal plane when the door is fully open.

It is understood that although manuallyhaving a stiffened frame, acovering bodyr therefor, a pin at each end acting as guides,

a rotatable member mounted on each PHI,-

looking rollers .intermediate the ends, and

wind locks on the opposite side to said rollers but in line therewith,the wind locks 'of one section co-acting with the rollers of the nextadjacent section.

2. A shed door comprising a plurality of sections of not less than fourin number arranged one directly above the other when the door is closedfor presenting a flush outside face. elevating means for independentlymoving the'sections to an elevated posit on when the door is to beopened, said means causing 'the sections to be nested at a pomt abovethe door, means .for causing each of said sections first to swing out ofa vertical plane and then move upwardly while inclined, and acounterbalancing structure for permitting the sections to be lifted wlthminimum amount of power.

3. In a door, aplurality of slidable door sections adapted to becollapsed. at one margin of the door opening but capable of being movedto a position to extend across the door opening and disposed inlongitudinal alinement, rollers projecting from onesections. inlongitudinal alinement against vibration.

AXIMILIAN H. KORN.

